Overview

overview

10

Static

static

3

testing.exe

windows7-x64

10

testing.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    testing.exe

  • Size

    1.1MB

  • Sample

    241225-r1qhmavrcm

  • MD5

    3864d4275dcd3d61c1952dd7609c95dc

  • SHA1

    f675d9f4d3fea6064c1adc4b5f41b0c68af4d18a

  • SHA256

    844ec4dfe83fe9cb72c93247cc45989a2f2522dbd5da34f27ef73eca04e96b45

  • SHA512

    5dc8ca845c52d9315dcddbb890e5ee3fe387240afe5a64bfed9b7c635a910c34c13c2dc54916b8904591530b06a2fb43bfeec1f01913620e01f7adea0e4c1071

  • SSDEEP

    24576:OImw98okVgela0as5CqLVO7XJCjkD3N0HRA:gL5ljasaU

Score
10/10
avoslockerdefense_evasiondiscoveryevasionexecutionimpactransomware

Malware Config

Targets

    • Target

      testing.exe

    • Size

      1.1MB

    • MD5

      3864d4275dcd3d61c1952dd7609c95dc

    • SHA1

      f675d9f4d3fea6064c1adc4b5f41b0c68af4d18a

    • SHA256

      844ec4dfe83fe9cb72c93247cc45989a2f2522dbd5da34f27ef73eca04e96b45

    • SHA512

      5dc8ca845c52d9315dcddbb890e5ee3fe387240afe5a64bfed9b7c635a910c34c13c2dc54916b8904591530b06a2fb43bfeec1f01913620e01f7adea0e4c1071

    • SSDEEP

      24576:OImw98okVgela0as5CqLVO7XJCjkD3N0HRA:gL5ljasaU

    Score
    10/10
    avoslockerdefense_evasiondiscoveryevasionexecutionimpactransomware

    • Avoslocker Ransomware

      Avoslocker is a relatively new ransomware, that was observed in late June and early July, 2021.

      ransomwareavoslocker

    • Avoslocker family

      avoslocker

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (10432) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks